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Ignition Suggestion from the Wiki

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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Unread postAuthor: HEMI1500 » Tue Mar 20, 2007 9:22 pm

Well this is just an idea. probably better in new construction, you make some strips of jb weld or some other very durable high strength epoxy or something, applied inside the combustion chamber with a large syringe or simply apply it with a buch of tooth picks rubber banded together, and befor it sets sprinkle on some metal filings, Its up to you how many strips you want to make, wired in series, for many many multiple sparks
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Unread postAuthor: Pete Zaria » Tue Mar 20, 2007 9:28 pm

Isn't JBweld electrically conductive once it's dry...? If so, you could probably use some other epoxy.

It'd work assuming the entire spark gap length was less than what your stun gun / spark device was capable of outputting. Test it outside the chamber first. I'm guessing you won't get more than a few inches of metal filing covered epoxy before the spark gap is too big to work properly.

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Unread postAuthor: Opossum » Mon Mar 26, 2007 4:35 pm

Wouldn't the cloud of metal explode like flour or dust in a silo. I saw in the movie One Flew Over the Cuckoo's Nest that they had jelly with metal shavings in it for electroshock treatments. Could you use petroleum jelly?
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Unread postAuthor: TwitchTheAussie » Tue Mar 27, 2007 12:55 am

HEMI1500 wrote:Well this is just an idea. probably better in new construction, you make some strips of jb weld or some other very durable high strength epoxy or something, applied inside the combustion chamber with a large syringe or simply apply it with a buch of tooth picks rubber banded together, and befor it sets sprinkle on some metal filings, Its up to you how many strips you want to make, wired in series, for many many multiple sparks


This is exactly what I tried to say before.
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Unread postAuthor: crazyfreak0075 » Tue Mar 27, 2007 9:33 pm

The small iron particles would oxidize so quickly with the present air plus the electricity going through it too.
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